.chk_1,.chk_2,.chk_3,.chk_4 {
    display: none;
}
 

/*******STYLE 3*******/

.chk_3 + label {
	background-color: #b3b3b3;
	padding: 9px 35px 9px 9px;
	border-radius: 50px;
	display: inline-block;
	position: relative;
	margin-right: 30px;
	-webkit-transition: all 0.1s ease-in;
	transition: all 0.1s ease-in;
	width: 27px;
	height: 2px;
	box-shadow:0 1px 3px rgba(0, 0, 0, 0.2) inset;
	-webkit-box-shadow:0 1px 3px rgba(0, 0, 0, 0.2) inset;
}

.chk_3  + label:after {
	content: ' ';
	position: absolute;
	top: 0;
	-webkit-transition: box-shadow 0.1s ease-in;
	transition: box-shadow 0.1s ease-in;
	left: 0;
	width: 100%;
	height: 100%;
	border-radius: 100px;
	box-shadow: inset 0 0 0 0 #eee, 0 0 1px rgba(0,0,0,0.4);
}

.chk_3  + label:before {
	content: ' ';
	position: absolute;
	background: #fff;
	top: 1px;
	left: 1px;
	z-index: 999999;
	width: 16px;
	-webkit-transition: all 0.1s ease-in;
	transition: all 0.1s ease-in;
	height:16px;
	border-radius: 100px;
	box-shadow: 0 3px 1px rgba(0,0,0,0.05), 0 0px 1px rgba(0,0,0,0.3);
}

.chk_3:active + label:after {
	box-shadow: inset 0 0 0 20px #eee, 0 0 1px #eee;
}

.chk_3:active + label:before {
	width: 18px;
}

.chk_3:checked:active + label:before {
	width:18px;
	left: 20px;
}

.chk_3  + label:active {
	box-shadow: 0 1px 2px rgba(0,0,0,0.05), inset 0px 1px 3px rgba(0,0,0,0.1);
}

.chk_3:checked + label:before {
	content: ' ';
	position: absolute;
	left: 27px;
	border-radius: 100px;
}

.chk_3:checked + label:after {
	content: ' ';
	font-size: 1.5em;
	position: absolute;
	background: #f00;
	box-shadow:0 3px 3px rgba(0, 0, 0, 0.2) inset;
	-webkit-box-shadow:0 1px 3px rgba(0, 0, 0, 0.2) inset;
}